Sony D-NE20 Service Manual page 22

D-NE20/NE20LS
• IC Block Diagrams
– EGH Board –
IC402 NCP1400ASN22TIG
CE 1
ERROR
AMP
2 +
OUT
-
COMPENSATION
VOLTAGE
SOFT-START
REFERENCE
NC 3
IC601 CXD9839K-G
NC 16
LOW
RFIN 17 AGC
BOOST
VDD 18
WOIN 19
WOBBLE
LPF AMP
WLOUT 20
WOBBLE
BPF AMP
1 2 3
IC3007 NJU8713V-TE2
8 9 10
BPZ
OUTPUT
BPZ
OUTPUT
7 6
D-NE20/NE20LS
VLX LIMITER
DRIVER
POWER
SWITCH
PHASE PWM
CONTROLLER
180 kHz
OSCILLATOR
15 14 13 12 11
10 SENB
9 VSS
SERIAL
I/F
RF RF
8 VREF
EQUALIZER EQUALIZER
to each block
RF
7 XPCLK
EQUALIZER
6 WPOL
4 5
11 12 13 14
OUTPUT
CONTROL
5 4 3 2 1
• IC Pin Function Description
EGH BOARD IC603 CASINO1 (SYSTEM CONTROLLER)
Pin No. Pin Name
1 PE6/SI1
2 PE5/SO1
3 PE4/XSCK1
5 LX
4 PE3
5 VDIO0
6 VSS0
7 DVDD7
8 PE2/DTCK
9 PE1/RxD0
10 PE0/TxD0
11 EVA
12 SDDQ16
13 SDDQ15
14 TAPTDO
4 GND
15 SDDQ14
16 SDDQ13
17 SCANEN
18 SDDQ12
19 SDDQ11
20 TEST2
21 SDDQ10
22 SDDQ8
23 VDIOSD0
24 VSS1
25 SDDQ9
26 SDDQ6
27 SDDQ7
28 SDDQ2
29 TEST3
30 SDDQ4
31 SDDQ3
32 TEST0
33 XSDWE
34 SDDQ1
35 TEST1
36 SDDQ5
37 SDLDQM
38 VDIOSD1
39 VSS2
40 SDUDQM
41 XSDCAS
42 XSDCS
43 TEST5
44 XSDRAS
45 SDCKE
46 TEST6
47 SDCLK
48 SDA13
49 XTRST
50 SDA12
22 22
I/O Description
I Status read signal input from LCD driver (not used)
O Command send signal output to LCD driver (not used)
O Clock signal output to LCD driver (not used)
O Chip select signal output to EEPROM
– Power supply terminal (+2.1V)
– Ground terminal
– Power supply terminal (+1.5V)
I LCD indication of remote control signal output
I not used
O not used
– Ground terminal
I/O Data bus to SDRAM
I/O Data bus to SDRAM
– not used
I/O Data bus to SDRAM
I/O Data bus to SDRAM
– Ground terminal
I/O Data bus to SDRAM
I/O Data bus to SDRAM
– Ground terminal
I/O Data bus to SDRAM
I/O Data bus to SDRAM
– Power supply terminal (+2.1V)
– Ground terminal
I/O Data bus to SDRAM
I/O Data bus to SDRAM
I/O Data bus to SDRAM
I/O Data bus to SDRAM
– Ground terminal
I/O Data bus to SDRAM
I/O Data bus to SDRAM
– Ground terminal
O WE signal output to SDRAM
I/O Data bus to SDRAM
– Ground terminal
I/O Data bus to SDRAM
O UDQM signal output to SDRAM
– Power supply terminal (+2.1V)
– Ground terminal
O LDQW signal output to SDRAM
O XCAS signal output to SDRAM
O Chip select signal output to SDRAM
– not used
O XRAS signal output to SDRAM
O CKE signal output to SDRAM
– not used
– Clock signal output to SDRAM
– not used
– not used
– not used